monday -- we told you about some of the bizarre things the federal government spends your hard-earned tax dollars on. part two of the week-long series "what to cut," correspondent doug mckelway finds billions in federal real estate, much of which is just sitting there. >> reporter: until the sale this month to private developer, the steam plant in the pricy georgetown neighborhood sat vacant for ten years. it was only when the house committee on oversight dragged the general services administration in the structure for a hearing that a forsale sign went up. >> you can't get your job up. you have 124 properties out of 14,000 properties. this is a property i don't care if it's a republican or democrat administration, this administration or previous administration, the job is not getting done. >> there are presently between 55 and 77,000 vacant federal properties. no precise inventory is kept. selling them off could save taxpayers between $3 and $8 billion a year. >> these properties could be used first to consolidate agencies that are now in lease building. >> this is a problem that has bee